Coating-machine.



C. W. MAYEH. COATING MACHINE. APPLICATION FILED 1111111131, 1913. IIENEWED MAR. 21. 1918.

Patented Nov. 5,1918.

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{lll/1111111 c. W.MAYER. COATING MACHINE.

AIPLICATIUN FILED MAIL 3|. I9I3. RENEWED MAR. 2 7 ISIS.

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Patented Nov. 5, 1918.

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APPLICATION FILED MAR.31.19I3 HENEWED MAR. 21,1918.

Patented NGV. 5, 1918.

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C. W. MAYEH. COMING MACHINE. Af'rLlcATloN HLED MAR. 3l, 1913. RENEWED MAR. 21. ma.

Patented Nov. 5, 1918. 4 /sHEETs-SHEET 4 CHARLES W. MAYER, F ROCHESTER, NEW YORK.

marine-MACHINE.

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To allwwm t may concern."

'a' citizen of the United yof Rochester,

CHARLES W. man, States, and resident county of Monroe, State of New York, have invented an Improvement in CoatingMachines, ing description, in connection with the accompanying drawings, is a specicatiomlike characters on the drawings representlng like parts. L

My present invention relates to coating machines and while having other and more general fields of usefulness is particularly designed and well adapted for the produc tion of carbon paper, waxed paper and llke carbonized, coated or impregnated paper or Be it known that li,

like fabric.

Une of 'the prime objects of the invention is to provide a machine adapted to handle paper rapidly and to coat the same evenly while keeping the paper smoothed out and free from wrinkles throughout, the method of handling being such that even very thin and delicate papers can Abe handled without injury thereto, and the machine being adapted to appl j coatings variable to a Wide degree as to nature and thickness as required. A further object of the invention 1s to provide an improved mechanism for smoothing or vbrushing out the paper preferably just before it is coated, so that when it is presented to the coating roll it is perfectly smooth and without creases or wrinkles. A further object is to provide improved ineans for equalizing or spreading the coating, such means consisting in one preferred embodiment' in a wire wound rod adapted to be rotated and vibrated as the paper passes thereover. A further object is to provide an improved construction of dope pan and agitating devices therewithin adapted to keep the contents thoroughly mixed and agitated throughout the operation of the machine. A further object is to provide an improved forrnof winding-on roll variable'in size in a predetermined manner and adapted to serve for measuring purposes. A further object is to lprovide an improved mounting for the unwinding roll. A st1ll further object is to provide .an improved combination of mechanism in' cl ud ng a relatively large chilling or annealing roll around which the paper passes from vthe equalizing bar, affording a relatively extended surface contact for the requisite annealing or chilling action.

The above and Specification ofiLetters Patent. Application filed. March 31, 1913, Serial No. 757,833. Renewed March of which the follow- "fied form of Fatented Nov.. 5, 1918. a7, 191e. serial no. 225,110.

other objects and features Vof the invention w1l-l be better understood from the following detalled description taken in connection with the accompanying" drawings and will be thereafter pointed out in the appended claims.

Referring to the drawings:

Figure l through the machine;

Fig. 2 is a horizontal section showing the brushmg out mechanism;

1g.'3 is a front elevation thereof;

Fig. 1 is a working parts;

Fig. 5 is a detail of apart of the dope pan and roll;

Fig. is a transverse section through the equalizlng bar and its support;

Fig. is a central lengthwise section through the winding-on drum;

Figs.' 8 and 9 show in'elevation and section, details of said drum;

Fig. l0 is a fragmentary detail of a modidope pan; v

Fig. 11 is ak plan View of a portion of the dope 4 pan showing a modified and in some respects preferred form of agitating device;

Fig. 12 isa sectional view showing the agitating member of the agitating device of Fig. lll.

rllhe paper is, unwound from a roll a journaled at l on a carrier part 2 having roller rests 3 on the carrier base 4c which is adjustable on the frame 5 by a rack and pinion connection 6. The carrier part 2 is yieldingy drawn backward by a spring 7 secured to it and to an upright from the carrier part A. From the roll a the paper passes over an ironing edge composed of a square b ar 9 detachably set in a seat at the top of a rigid support 10. rllhe front of this support presents a smooth downwardly sloping face 11 over which the paper passes afterrbending at a sharp angle around of bar 9. The bar 9 is removable andmay be turned over .to present edges successively for an ironing edge as required. lBeneath the support 10 is a roll l2 arranged so that the paper as drawn down from the ironing edge 9 is kept against the face 11 and 'this roll 12 is also arranged adjacent and just below the top of dope roll 13. As the paper passes down over the face ll it is smoothed out preparatory toconis a vertical lengthwise section plan view showing the main I the ironing edgel each of its four tacting to the dope roll, and for this purpose s ll provide brushes 14e, l5 mounted on endless belts. These belts are moved so that the respective brushes travel from near the center, in opposite directions toward the edges of the paper and for this purpose they are mounted on rolls 16 on shafts 17, all these shafts being power driven, theouter ones from the inner ones by sprocket chains 18 and the inner ones by gearing 19,20 from a shaft 21 which is in turn driven by a sprocket chain 22 from main driving shaft 23. The brushes 14, are guided and held in pressing engagement with the paper throughout their operative reaches by plates 24 over which the brush carrying belts designated 25 pass and the brushes together with l their supports are bodily adjustable toward and from the face 11 over which the paper passes by screw bolts 26 which engage the brush carrying frame 27 near each end theremain frame.

of and have swiveling engagement as at 28 with a relatively fixed frame or support portion 29 which rests on a cross seat on the have suitable tensioning devices, shown as rolls 30 adj'ustaby mounted as seen at 31.

The brushes 14, 15, constituting the lateral' smoothing means present soft flexible surfaces for engaging the paper which yield easily in the direetion'of paper feed, as well as in the direction of their own movement, so that the paper is brushed and smoothed out with a gentle though effective action. This flexible and pliable character of the smoothing element is of particular importance in handling light and delicate papers, which it will be understood constitute a great part of the output in a machine of this character.

From the roll 12 the paper web passes over the top of dope roll 13, being guided so as to press over some little area of the surface thereof and thence it is guided forward over an equalizing bar 32. It is to be understood `that the dope roll 13 is power driven by connections (not shown) so that its surface moves at a somewhat different rate from that of the advancing paper. To provide uncoated edges for the paper web, at option, 1 provide guard pieces 34 carried by adjustably mounted arms 35 and covering the surface of the roll at its ends. The equall izing bar `32 is mounted in a seat provided therefor on a box support 36 shown astriangular and hollow to permit heating by steam introduced therein. The equalizing bar 32 isformed as a circular rod having a close winding of wire thereon, which wire may be of different sizes as required for different thicknesses of coating. The bar 32 is rotated and at the same time given a vibratory endwise movement by the following devices. 1t has fixed thereto at its left end as seen in Fig. 4, a pulley 37 driver. by a belt v38 from a pulley/,39 on the dope roll shaft which belt also drives a pulley 40 on The sprocket chain 18 may the shaft 41 of the front roll to be presently described. As the bar 32 is thus rotated` it is also vibrated endwise by a rod 42 which has swiiel connection 43 therewith, this rod having a roller 44 at its outer end which engages a cam face ofa disk 45 fixed on the end of shaft 41, there being a spring 4G housed in the bar support for returning the bar and to keep it in contact with said cam' face. rLhe box support 36 for the bar 32 is supported at its ends on arms 47 pivotally mounted on the shaft 41 and adjustable by screw bolts 48 to move the equalizer bar up and down as required. After passing over the equalizer bar 32 the paper passes down around a relatively large and hollow lower front roll 49 fixed on shaft '41 and thence up and backward over roll 50 which may be a second dope roll for coating the other side of the paper if required. Thence the paper passes over a back tension roll 51 and a front tension roll 52, and guide rolls 53 to an adjustable winding-on roll 54 which is suitably driven with a light friction drive, just strong enough to wind on the paper without injuring the same.

The dope pan 55 rests on a steam jacket base 56 and has in its bottom a foraminous plate 57 adapted to keep the pan contents agitated by a continuous vibration which is imparted by an upright 58 carried by said plate engaging with' a series of step cam shoulders on a disk 59 at the end of the dope roll, there being a spring 60 interposed to keep the upright 58 pressed against said shoulders. These cam-shoulders shift said plate in one direction and whenever the upright 58 clears one of their high edges the spring 60 causes the plate to snap back or return rapidly in the other direction, jarring it and vigorously agitating the dope, thus efectually preventing it from settling. The stirrer plate 57 may be of simple grate form as-shown in Figs.` 4 and 5 but 1 preferably make it of the special form shown in the Figs. 11 and 12 wherein such a stirrer plate designated 57 has a large number of spaced apart fins 571 struck up therefrom to extend obliquely toward the end of the plate wherefrom it is actuated by the upright 58 and spring 60. Thus as the plate moves back uickly after being released by the cam s oulders 59 under the influence of the spring 60 these oblique fins sticking up into the dope mass will lift the heavier and more solid portions of the dope that tend to settle in the bottom of the pan, and mix the same thoroughly with the rest of the contents. The dope roll and the several guide rolls or drums are hollow and mounted on hollow shafts so that they can be heated as required by the introduction of steam, or as is someV times the case with the front roll 49, cooled by the introduction of a cooling agent. The dope pan bottom may be provided with cor- 'front roll back to th nasa,

rugations 61 to strengthen the same and promote the circulation of heat. The winding-on roll 54 is adjustable in size and for this purpose it iscomposed of a series of bars 62 having beveled ends 63 engaged by expanding rings 64 which are moved in andl out by nuts 65 engaged with threaded portions 66 on a rod 67 mounted within the hollow shaft 68 of the roll. 'lihe ends of the winding-on drum are formed by disks 69 which engage against the ends of bars 62.

In certain operations where only one side Vof the paper is to be coated instead of runfront roll 49 up over the roll pass directly from the e tension roll 52 as indicated by the dot and dash line m in lFig. 1. The bar 9 which presents the ironing edge to the paper is preferably adjustable in and out to a small extent on its seat, an adjusting device for this` purpose being shown asa screw 79 which may be located centrally of, the bar, thus permitting a small rocking selfI adjustment of the bar on its seat to conform to the line of 'paper feed.

lin use the unwinding roll a is set in proper position by means of the rack and pinion device 6 and the spring 7 acting on the auxiliary roller support 2 contributes to keep the paper web under even and uniform tension, permitting take up for unevenness in the unwinding roll as when it is more 0r less irregular in shape instead of truly cylindrical and concentric with its axis, as is often the case. The described mechanism is adapted to iron and smooth out and completely eliminate wrinkles and creases as the web passes over the ironin edge 9 which removes al1 longitudinal wrinkles. The web as it passes down the smooth face 11 is acted on by the brushes 14, which completely eradicate all lateral wrinkles or unevenness so that as the paper passes thence over the coating roll it is effectively smoothed out and stretched ready to receive an even uniform coating from the dope roll. The guard plates 34 are optionally employed and may be of di'erent widths as required for leaving uncoated margins of the desired extent or these guards may be removed if no uncoated margin is desired. The guards may be adjusted laterally to various-positions at the ends of the coating roll or intermediate thereof, so that if desired the web may be coated in Stripes with blank or uncoated spaces between them and along the margins of the web. 'llhis ning from the 50, the pa per may Y lateral adjustment is permitted because there of the paper.

are no parts immediately above the coating roll which interfere with the guards. This adjustment can be effected while the machine is in motion to make it possible to conform to various widths of stripes-or selvage edges 'llhe dope is kept constantly agitated and in a condition of uniform conture especlally for use sistency bythe constantly reciprocating agitator plate in the bottom of the dope pan, the fins 57" when this form is used not only agitating the pan contents but also by reason of their oblique direction constantly throwing up the more solid portions of the dope which tend to set in the bottom. It will be understood that the, spring plate Scrapers 77 when these are used may be adjusted so as to press on the dope roll to the required extent for moving just the right amount of dope so that the paper may be carbonized, waxed or otherwise coated as lightly as desired. The compression roll 78, is a material feawith the scraper elements 7 7 in coating lightly carbonized paper, insuring as it does that the paper will remove practically all of the adhering dope on the roll and also insuring the more even application of the dope. li consider the special construction and operation of the wire wound equalizer 32 to .be a very valuable and important feature of the invention, the wire on this rod being selected as to size with .reference to the work which the rod is to perform, t. e., being wound with relatively coarse wire for heavy coatings and with line wire for lighter coatin s. rllhe constant turning of this rod by the elt 38 as described prevents accumulating of eign matter at the line of contact and this feature is also very valuable as presenting constantly changing contacting portions insuring longevity of service and even wear on the rod. 'lhe swivel device 43 permits the jigging device consisting of roller 44 and cam face 45 to operate for the required purpose of producing a wavy or zig-zag line in the coating without 1n any wise disturbing the rotation of the rod. l'.llhe rod is also kept evenly and eiectively heated by its special mounting support at the top of the hollow steam heated box 36, the triangular form of this bor combining rigidity as a support with a form permitting the widest adjustment without mterfering with the travel ofthe paper. lit is to be noted that the.

front rol1'49 is of relatively large size whereby it presents a comparatively large and extended area of contact to the paper for annealing or chilling the same as required ac? cording to the kind of paper being produced, this being a point of considerable importance in producing waxed or carbonized paper where only a minute superficial coating is desired. The special arrangement of the tension rolls 5l and 52 which may be cooled by the passage therethrough of cooling fluid is such that not only is an adequate grip upon the paper secured for drawing the same lint or other forreason of through the machines but the paper first j passing adjacent to and over the roll 52 on its way to the roll 51 is cooled by the presence of the roll '52 but it contacts with the roll 51. The adjustability of the take-on tive and refer to the appended claims rather than to the foregoing description to indicate the scope of the invention. A

Having described my invention What I claim as new and desire to secure by Letters Patent is:

1. An apparatus of the kind described, comprising means for feeding a web of paper, means for coating the same, .and smoothing means arranged to engage the web adjacent to and in advance of the receiving side of said coating means and laterally movable in opposite directions.

from the central portion of the Web toward its edges.

2. Apparatus of the kind described, comprising mechanism for feeding a Web of paper under tension and for coating the saine, there being a smooth plane face over which the paper passes prior to its coating, and smoothing means moving laterally over the paper and pressing it against said face to smooth the paper, said smoothing means presenting soft, yielding and flexible paper engaging portions.

3.. Apparatus of the kind described, comprising means for feeding a Web of paper under tension, a coating roll in position for coating the paper as it is fed, and means for smoothing the paper laterally, consisting in oppositely moving brushes adapted to engage the paper prior tothe coating thereof, there being a smooth plane backing face against which the paper is pressed as the brushes act thereon.

4. Apparatus of the kind described, comprising means foi' feeding a Web of paper under tension, means for applying dope thereto, and means for smoothing and ironing the paper consisting in a smooth face plate over Which the paper is drawn While held against such face, a bar equipped With an ironing edge fitted to a side of said plate and a laterally moving member acting against such plate to smooth and stretch the paper laterally. V

5. Apparatus of the kind described, comprising mechanism for feeding paper and treating the samewith coating material, and means for equalizing the dope coating consisting in a relatively small rotary rod and means for turning the same in the operation of the machine, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

6. Apparatus of the kind described, comprising mechanism for feeding and coating paper, and an equalizer in position to engage the paper after the coating thereof, consisting in a relatively small circular rod having provision to receive rotary and endwise movement in the operation of the machine for the purposes stated, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

7. Apparatus of the kind described, comprising mechanism for feeding and coating paper, and means for equalizing the coating consisting in a relatively small circular rod presenting a scalloped contour, and means for continuously rotating said rod in the operation of the machine, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

8. Apparatus of the kind described, comprising mechanism for feeding and coating paper and means for equalizing the coating consisting in a rod of scalloped contour, a support for said rod throughout the length thereof adapted to be heated and means for continuously rotating said rod in the operation of the machine, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

9. Apparatus of the kind described, coinprising mechanism for feeding and coating paper, and an equalizer rod in position to engage the paper after the coating thereof, said rod presenting a scalloped contour and having provision to receive combined rotary movement and endwise vibrations continuously in the operation of the machine, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

10. Apparatus of the kind described, comprising mechanism for feeding and coating paper, and means for equalizing the coating thereof consisting in a wire wound equalizer rod equipped with mechanism f or rotating the same and vibrating it endwise continuously in the operation of the machine, said rod being arranged in position for the coated paper to be flexed thereover at a substantial angle.

11. Apparatus of the kind described, comprising mechanism for feeding paper under tension and for coating the same, and means for equalizing the coatingconsisting in an equalizer device having provision to present constantly changing paper engaging portions, said equalizer device being mounted in position to substantially change the direction of the paper web as it passes thereover.

l2. Apparatus of the kind described, coinprising mechanism for feeding paper under tension and for coating the same, and means f or equalizing the provision to receive rotation, the mounting of said rod being ad-v justable to cause it to deflect the path of the paper to a greater or less eXtent,-and being such as to produce a substantial flexing of the paper in all positions of adjustment.

An apparatus of the kind described, comprising mechanism for feeding' a papercoating roll arranged to engage the web and provided at one end with an annular row of cam-shoulders, a dope-pan for supplying said roll, an agitator in said pan movable lengthwise of said roll and provided with a member tion, and a spring for holding said agitatormember against said shoulders to shift the agitator in the opposite direction.

which engages saidV shoulders to shift the agitator in one direc-l 14. Apparatus of the kind described,l comprising mechanism for feeding paper under tension7 a coating roll to engage the paper, a dope vpan to supply said coating roll, and an agitator mounted in said dope pan conln testimony whereof l have signed my name to this specication in the presence of A two subscribing Witnesses.

CHARLES W. MAYER.

Witnesses:

JACOB L. lALRnoii'i, JOHN H. DAILEY. 

